Your milestones will appear here.
The timeline
Animals ordered by estimated maximum lifespan. Select one for details and sources.
- Passed
- You
- Next
- Ahead
Enter your age to see which animals’ estimated maximum lifespans you’ve already passed, and which one comes next.
Your milestones will appear here.
Animals ordered by estimated maximum lifespan. Select one for details and sources.
Each milestone is a cautious estimated maximum lifespan for that animal. It’s set high enough that, once you pass it, you’re very likely older than any individual of that species alive today. In our judgement the chance is at least about 90%. It isn’t a typical lifespan; most individuals live far shorter lives.
Every milestone follows the same rule. It starts from the longest credibly documented age for the species, from the wild or captivity, mostly from the AnAge database. Then it’s raised above every credible or plausible claim, including famous individuals alive today, such as Fatou, a gorilla at Berlin Zoo who turned 69 in 2026. Where ages are scientific estimates (from growth rings, eye-lens chemistry or radiocarbon dating), or where only a handful of animals have ever been aged, the milestone gets extra headroom, sometimes decades.
Each animal’s details show the milestone, the documented record behind it, and the reason for the gap. Each animal is labelled In captivity, In the wild or Setting not specified according to where its documented record comes from. These are careful judgements rather than measurements, and new records can change them.
“Passed” counts only the 82 animals included in this visualizer. It says nothing about other animals.
The countdown is approximate. It uses your age in years and months, not your exact birthday, so it may be off by about a month. Your age never leaves your browser.
Lifespan data: Tacutu, R. et al. (2018). Human Ageing Genomic Resources: new and updated databases. Nucleic Acids Research 46, D1083–D1090. Each animal’s details link to its own source.